package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {


    /*
    动态条件查询
    */
    List<ShoppingCart> list(ShoppingCart shoppingCart);
    /*
      如果已存在数量加1
     */
    @Update("update shopping_cart set number=#{number} where id=#{id}")
    void updateNumberById(ShoppingCart cart);
    /*
    添加购物车
     */
    @Insert("insert into shopping_cart (name,image,user_id,dish_id,setmeal_id,dish_flavor,number,amount,create_time)"+
    "value (#{name},#{image},#{userId},#{dishId},#{setmealId},#{dishFlavor},#{number},#{amount},#{createTime})")
    void insert(ShoppingCart shoppingCart);
    /*
    清空购物车
     */
    @Delete("delete from shopping_cart where user_id=#{userId}")
    void deleteShoppingCart(Long userId);
    /*
    删除购物车的商品
     */
    @Delete("delete from shopping_cart where id=#{currentId}")
    void delete(Long currentId);

    /**
     * 批量插入购物车数据
     * @param shoppingCartList
     */
    void insertBatch(List<ShoppingCart> shoppingCartList);
}
